public class Example6_1 {
    public static void main(String args[]) {
	China zhang;
	Japan henlu;
 	zhang=new China();
	henlu=new Japan();
	zhang.number=32+Computable.MAX;
	henlu.number=14+Computable.MAX;
    System.out.println("zhang的学号"+zhang.number+",zhang求和结果"+zhang.f(100));
    System.out.println("henlu的学号"+henlu.number+",henlu求和结果"+henlu.f(100));
    }
}
